Manchester Airport's so-called 'kiss and fly' car park charge is the most expensive per minute in the country.
Four out of five UK airports have increased their fees for drivers dropping off or collecting people at airports this summer.
Figures released by the RAC, who undertook the investigation show that it costs £3 to park for five minutes, which is 60p per minute, or £4 for 10 minutes.
Eighteen of the 22 airports analysed have introduced or raised drop-off fees.
So-called kiss and fly charges - typically levied for dropping off someone as close to the terminal as possible - have increased at eight airports compared with last year.
Stansted and Luton have the most expensive initial charges at £4 for 10 minutes and 13 minutes respectively.
Most expensive short-term car parks for pick-ups:
Luton: £8 for 30 minutes
Stansted: £8 for 30 minutes
Birmingham: £5.50 for one hour
Manchester: £4.50 for 30 minutes
Heathrow: £4.20 for 30 minutes
Edinburgh: £4 for 15 minutes
East Midlands: £4 for 30 minutes
Gatwick: £4 for 30 minutes
London City: £3.50 for 10 minutes
Southend: £3 for 10 minutes
RAC spokesperson Simon Williams said:
Many travellers simply do not have easy public transport access to get to the airport and even if they do, they can't always depend on it getting them to the airport in good time.
A spokesman for the Airport Operators Association said a one of the reasons for the drop-off charges is to help manage congestion:
Airports that operate drop-off charges directly outside the terminal do so for a number of different reasons, including to manage congestion in capacity-restricted areas and to limit the environmental and air quality impacts of kiss and fly journeys.